9. Hippy Dropout Becomes Wind Energy Mogul
Dale Vince has been busy lately. From launching a network of nationwide free electric car charging stations, to building a bee-friendly utility-scale solar power plant, this former hippy traveler turned wind energy millionaire has been pushing the boundaries of renewable energy and clean transportation.

10. Scientists May Have Found Flowing Water on Mars
The presence of ice on Earth's red neighbor is now established, but for microbial organisms to live, liquid water is necessary. This week, scientists announced that they may have found just that.